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newlib-cygwin/newlib/libm/common
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Szabolcs Nagy 2805b07fa1 Fix large ulp error in pow without fma very near 1.0 
The !HAVE_FAST_FMA code path split r = z/c - 1 into r = rhi + rlo such
that when z = 1-tiny and c = 1 then rlo and rhi could have much larger
magnitude than r which later caused large rounding errors.

So do a nearest rounding instead of truncation at the split.

In newlib with default settings this was observable on some arm targets
that enable the new math code but has no fma.
2018-07-06 10:29:01 +02:00
..
acoshl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
acosl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
asinhl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
asinl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
atan2l.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
atanhl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
atanl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
cbrtl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
ceill.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
copysignl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
cosf.c
Improve performance of sinf/cosf/sincosf
2018-06-21 09:37:04 +02:00
coshl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
cosl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
erfcl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
erfl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
exp2.c
Fix code style and comments of new math code
2018-07-06 10:29:01 +02:00
exp2l.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
exp_data.c
New exp and exp2 implementations
2018-06-27 15:40:49 +02:00
exp.c
Fix code style and comments of new math code
2018-07-06 10:29:01 +02:00
expl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
expm1l.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fabsl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fdiml.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fdlibm.h
New pow implementation
2018-06-27 15:40:49 +02:00
floorl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fmal.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fmaxl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fminl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fmodl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
frexpl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
hypotl.c
* libc/include/complex.h (cabsl): Add prototype.
2015-02-06 16:14:04 +00:00
ilogbl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
isgreater.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
ldexpl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
lgammal.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
llrintl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
llroundl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
local.h
2009-04-24 Jeff johnston <jjohnstn@redhat.com>
2009-04-24 22:49:55 +00:00
log1pl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
log2_data.c
Move __HAVE_FAST_FMA to math_config.h
2018-07-06 10:29:01 +02:00
log2.c
Move __HAVE_FAST_FMA to math_config.h
2018-07-06 10:29:01 +02:00
log2l.c
2014-12-15 Jonathan Roelofs <jonathan@codesourcery.com>
2014-12-15 20:50:23 +00:00
log10l.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
log_data.c
Move __HAVE_FAST_FMA to math_config.h
2018-07-06 10:29:01 +02:00
log.c
Move __HAVE_FAST_FMA to math_config.h
2018-07-06 10:29:01 +02:00
logbl.c
2014-12-15 Jonathan Roelofs <jonathan@codesourcery.com>
2014-12-15 20:50:23 +00:00
logl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
lrintl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
lroundl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
Makefile.am
New pow implementation
2018-06-27 15:40:49 +02:00
Makefile.in
New pow implementation
2018-06-27 15:40:49 +02:00
math_config.h
Change the return type of converttoint and document the semantics
2018-07-06 10:29:01 +02:00
math_err.c
New exp and exp2 implementations
2018-06-27 15:40:49 +02:00
math_errf.c
Use uint32_t sign argument to math error functions
2018-06-27 15:40:49 +02:00
modfl.c
2013-11-19 Joel Sherrill <joel.sherrill@oarcorp.com>
2013-11-19 17:28:04 +00:00
nanl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
nearbyintl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
nextafterl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
nexttoward.c
2014-12-15 Jonathan Roelofs <jonathan@codesourcery.com>
2014-12-15 20:50:23 +00:00
nexttowardf.c
Use _LDBL_EQ_DBL in nexttowardf.c
2018-05-07 12:22:12 -04:00
nexttowardl.c
2014-12-15 Jonathan Roelofs <jonathan@codesourcery.com>
2014-12-15 20:50:23 +00:00
pow_log_data.c
New pow implementation
2018-06-27 15:40:49 +02:00
pow.c
Fix large ulp error in pow without fma very near 1.0
2018-07-06 10:29:01 +02:00
powl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
remainderl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
remquol.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
rintl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
roundl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
s_cbrt.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_copysign.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_exp10.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_expm1.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_fdim.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_finite.c
…
s_fma.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_fmax.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_fmin.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_fpclassify.c
2007-04-25 Jeff Johnston <jjohnstn@redhat.com>
2007-04-25 22:28:19 +00:00
s_ilogb.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_infinity.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_isinf.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
s_isinfd.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
s_isnan.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_isnand.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
s_lib_ver.c
2006-09-13 Patrick Mansfield <patmans@us.ibm.com>
2006-09-13 22:06:43 +00:00
s_llrint.c
fix llrint and lrint for 52 <= exponent <= 62
2018-05-29 15:59:48 +02:00
s_llround.c
2010-08-03 Craig Howland <howland@LGSInnovations.com>
2010-08-03 18:21:20 +00:00
s_log1p.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_log2.c
New log2 implementation
2018-06-27 15:40:49 +02:00
s_logb.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_lrint.c
fix llrint and lrint for 52 <= exponent <= 62
2018-05-29 15:59:48 +02:00
s_lround.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_matherr.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_modf.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_nan.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_nearbyint.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_nextafter.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_pow10.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_remquo.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_rint.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_round.c
libm/common/s_round.c (round): Add cast for 16-bit CPUs
2018-06-21 09:31:13 +02:00
s_scalbln.c
* libm/common/s_fdim.c: New file.
2002-06-07 21:59:57 +00:00
s_scalbn.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_signbit.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_trunc.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
scalblnl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
scalbnl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
sf_cbrt.c
…
sf_copysign.c
…
sf_exp2_data.c
New expf, exp2f, logf, log2f and powf implementations
2017-10-13 10:58:00 +02:00
sf_exp2.c
New expf, exp2f, logf, log2f and powf implementations
2017-10-13 10:58:00 +02:00
sf_exp10.c
2007-05-17 Yaakov Selkowitz <yselkowitz <at> users.sourceforge.net>
2007-05-17 18:50:57 +00:00
sf_exp.c
Remove unused TOINT_RINT and TOINT_SHIFT macros
2018-07-06 10:29:01 +02:00
sf_expm1.c
…
sf_fdim.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_finite.c
…
sf_fma.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_fmax.c
2005-08-10 Stephen Huw Clarke <stephen.clarke@st.com>
2005-08-10 21:02:28 +00:00
sf_fmin.c
2005-08-10 Stephen Huw Clarke <stephen.clarke@st.com>
2005-08-10 21:02:28 +00:00
sf_fpclassify.c
2007-04-25 Jeff Johnston <jjohnstn@redhat.com>
2007-04-25 22:28:19 +00:00
sf_ilogb.c
2010-02-11 Craig Howland <howland@LGSInnovations.com>
2010-02-11 21:00:33 +00:00
sf_infinity.c
…
sf_isinf.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sf_isinff.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sf_isnan.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sf_isnanf.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sf_llrint.c
* libm/common/sf_llrint.c, libm/common/sf_round.c: Add explicit casts
2010-10-08 15:24:56 +00:00
sf_llround.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_log1p.c
…
sf_log2_data.c
New expf, exp2f, logf, log2f and powf implementations
2017-10-13 10:58:00 +02:00
sf_log2.c
New expf, exp2f, logf, log2f and powf implementations
2017-10-13 10:58:00 +02:00
sf_log_data.c
New expf, exp2f, logf, log2f and powf implementations
2017-10-13 10:58:00 +02:00
sf_log.c
New expf, exp2f, logf, log2f and powf implementations
2017-10-13 10:58:00 +02:00
sf_logb.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_lrint.c
Add new binutils target: moxie
2009-04-16 15:39:46 +00:00
sf_lround.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_modf.c
…
sf_nan.c
2014-03-21 Maciej W. Rozycki <macro@codesourcery.com>
2014-03-21 21:27:29 +00:00
sf_nearbyint.c
* libm/common/s_fdim.c: New file.
2002-06-07 21:59:57 +00:00
sf_nextafter.c
…
sf_pow10.c
2007-05-17 Yaakov Selkowitz <yselkowitz <at> users.sourceforge.net>
2007-05-17 18:50:57 +00:00
sf_pow_log2_data.c
New expf, exp2f, logf, log2f and powf implementations
2017-10-13 10:58:00 +02:00
sf_pow.c
Use uint32_t sign argument to math error functions
2018-06-27 15:40:49 +02:00
sf_remquo.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_rint.c
2010-03-08 Craig Howland <howland@LGSInnovations.com>
2010-03-08 17:16:37 +00:00
sf_round.c
Throughout, run newlib with -Wall -Werror option and fix bugs and
2012-08-08 11:04:18 +00:00
sf_scalbln.c
* libm/common/s_fdim.c: New file.
2002-06-07 21:59:57 +00:00
sf_scalbn.c
…
sf_trunc.c
* libm/common/s_fdim.c: New file.
2002-06-07 21:59:57 +00:00
sincosf_data.c
Improve performance of sinf/cosf/sincosf
2018-06-21 09:37:04 +02:00
sincosf.c
Fix code style and comments of new math code
2018-07-06 10:29:01 +02:00
sincosf.h
Improve performance of sinf/cosf/sincosf
2018-06-21 09:37:04 +02:00
sinf.c
Fix code style and comments of new math code
2018-07-06 10:29:01 +02:00
sinhl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
sinl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
sl_finite.c
finitel: Use correct GCC builtin
2016-03-26 20:29:20 +01:00
sqrtl.c
* libc/include/complex.h (cabsl): Add prototype.
2015-02-06 16:14:04 +00:00
tanhl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
tanl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
tgammal.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
truncl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00